ISO 22078:2020 pdf free.Intelligent transport systems一Bicyclist detection and collision
mitigation systems (BDCMS)一Performance requirements and test procedures.
BDCMS shall activate the EB countermeasure upon determination of a hazardous situation. It is the intent of this document that the SV EB countermeasure provides as much speed reduction as possible to mitigate a hazardous situation; however, as current state-of-the-art sensors have limitations, the detection area for crossing bicyclists is also limited. For example, only bicycles with certain speeds can be detected in certain crossing scenarios. Additionally, certain BDCMS implementations may be combined with an automated evasion countermeasure which could lead to different approaches to mitigating the hazardous situation. For example, certain longitudinal bicyclist positions near the edges of the SV trajectory may lead to a reduced speed reduction. in these circumstances, while the minimum speed reduction may not be fully achieved, BDCMS shall begin the EB countermeasure upon the determination of a hazardous situation so that some speed reduction is realized. Considering these limitations, BDCMS shall achieve at least the specified minimum speed reduction as defined in the basic validation tests of Clause 6.
BDCMS shall activate the EB countermeasure upon determination of a hazardous situation. It is the intent of this document that the the SV EB countermeasure provides as much speed reduction as possible to mitigate a hazardous situation; however, as current state-of-the-art sensors have limitations, the detection area for crossing bicyclists is also limited. For example, only bicycles with certain speeds can be detected in certain crossing scenarios. Additionally, certain BDCMS implementations may be combined with an automated evasion countermeasure which could lead to different approaches to mitigating the hazardous situation. For example, certain longitudinal bicyclist positions near the edges of the SV trajectory may lead to a reduced speed reduction. In these circumstances, while the minimum speed reduction may not be fully achieved, BDCMS shall begin the EB countermeasure upon the determination of a hazardous situation so that some speed reduction is realized. Considering these limitations, BDCMS shall achieve at least the specified minimum speed reduction as defined in the basic validation tests in Clause 6.
The lamp installation requirements are given below.
— There shall be a sufficient number of street lamps installed along the test course to ensure the illumination values specified in 6355. The number of street lamps represented by LO in Figure 4 will change according to the value of S.
— As represented by L3 in Figure 4, there shall be one lamp installed beyond the illuminance measurement area (see 63.5.3.2) to avoid an unrealistic dark area in front of the SV.
— The installed lamps along the vehicle path used in the test shall be the same type, have the same height with the deviation of less than 0,2 m, and be equally spaced with the deviation of less than 1,0 m.
— The position of the centre of the lamps shall be within 2 m of the lamppost in the direction towards the vehicle path.
— The colour temperature of the lamps shall be 4 500 K ± 1 000 K.
— Lampposts, or any other test equipment, installed for the test setup shall not present occlusion between the SV and bicyclist during the test.ISO 22078 pdf download.